Windows – How to find out which version of Microsoft Internet Information Services (IIS) the server is running

This is the one I would go with:

gwmi win32_operatingSystem | select name

As todda.speot.is mentioned, that is the same link I found, but there are a lot of anwsers within it, and I tested them. That one I gave appears to give you what you want, although you will have to parse it (I think that is the right term).

Here is a sample output:

Microsoft Windows Server 2003 R2 Standard x64 Edition|C:\WINDOWS|\Device\Harddisk0\Partition1

http://www.eggheadcafe.com/software/aspnet/31845351/reliable-way-to-get-windows-version.aspx

This is because the remoting PowerShell session does not include the "IIS:" PowerShell drive. (Try running "Get-PSDrive" locally, and then through Invoke-Command, to see the difference).

The "IIS:" drive is almost certainly being added by the WebAdministration PS snap-in when you are running Powershell locally on the IIS server, either because you are launching PowerShell from a special IIS-specific shortcut, or because a local PowerShell profile script is running and loading it.

You should get the results you're looking for by explicitly adding the WebAdministration snap-in to the remote session (which creates the "IIS:" drive) by changing your Invoke-Command to look like this:

invoke-command -ComputerName IISSERVER -ScriptBlock { Add-PSSnapin WebAdministration; test-path "IIS:\AppPools\DefaultAppPool" }